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Direct linkDanthiir, Vanessa; Wilhelm, Oliver; Schulze, Ralf; Roberts, Richard D. – Intelligence, 2005
This study explored the structure of elementary cognitive tasks (ECTs) and relations between the corresponding construct(s) with processing speed (Gs) and fluid intelligence (Gf). Participants (N=321) completed 14 ECTs, 3 Gs, and 6 Gf marker tests, all administered in paper-and-pencil format to reduce potential confounds evident when tasks are…
Descriptors: Factor Structure, Factor Analysis, Intelligence, Test Validity
Peer reviewedHumphreys, Lloyd G.; Parsons, Charles K. – Intelligence, 1979
A reanalysis of Stephens' intercorrelations of Wechsler subtests, achievement tests, and Piagetian tasks was conducted. (EJ 055 112) Piagetian tasks contributed almost equally to the definition of the general factor in intelligence along with the Wechsler subtests and the achievement tests. Communality outweighed differences between intelligence…
Descriptors: Achievement Tests, Age Differences, Cognitive Development, Cognitive Tests
Peer reviewedGlass, Gene V.; Stephens, Beth – Intelligence, 1980
Relationships among Piagetian reasoning assessments and standard measures of intelligence and achievement were determined in 1972 by Stephens, McLaughlin, Miller, and Glass (EJ 055 112). The data were reanalyzed by Humphreys and Parsons in 1979 (EJ 218 642). In reply, Glass and Stephens note fallacies in Humphreys' and Parsons' reasoning.…
Descriptors: Achievement Tests, Cognitive Development, Cognitive Measurement, Cognitive Processes
